Machine



Jan. s, 1924. 1,479,824v

H. LUNDQUIsT THREADING MACHINE Filed pas. e, 1919 5 sheets-shea 1 Imfenftor Jan. s, 1924.l j 1,479,824

' H. LuNDQulsT THREADING MACHINE Jan. 8, H. LUNDQUVIST THREADING MACHINE Filed Dec. 6, 1919 3 Sheets-Sheet 3 ilus;

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Patented dan. 8, i924.

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caire sierras HANS LUNDQUST, OF CHICAGO, ILLNOIS, ASSIGNOR TO UNITED STATES SECIA-LT-Y CORPORATION, OF CHCAGO, ILLINOIS, is. CGRPGRATION OF LLINGS. I

THE-,EADNG MACHINE.

citizen of the United States, residing at Chicago, iii the county of Cook and the State of Illinois, have invented new and useful inproveinents in Threading lgachines', of which the following is a specification.

This invention relates to improvements in niachines for threading ribbons through laces, or the like.

It is an object of the invention to provide a machine whereby ribbons inay be inserted through the mesh of lace so that the ribbon alternately is placed above and below different'strands of the lace.

1t is also an object of the invention to provide a device for'autoinatically gathering portions of lace fabrics, and to insert the ribbon inte the mesh of the lace'by straightening out or stretching the gathered portion of the lace.

An object of the invention is also to provide a machine in which the arrangement of the lace, with respect to the ribbon support, is effected automatically by a threading needle, through rela-tivo inoveinent of the threading needle and lace.

lt is, furthermore, an object of the iii-- rention to provide in a machine of this character means, which in this instance-by way of example-are nievably supported by a threadingl needle, fer successively and alternately defleeting strands 'of the lace work so as to place -theni above and below the threading needle respectively.

in object of the invention is also to support a. threading needle pii'otally at either one of two selectively determined points, whereby either a portion of the needle inay be rendered free to 1perniit the reinoral of the lace gathered thereon, ci' a selectively determined lei'igtli of lace ina)Y be gathered or ruflled through adva cenient of the lace in direction towards the pivotal supporting point.

lVith these and numerous other obiectsA in view, an einbodiinent of the ii'iventien is described in the following specification, and is illustrated in the accompanying drawings,

the novel features being pointed out in the f appended clainis.

F ig. 1 is a perspective `view of the conilplete machine;

Fig. 2 is a rertical longitudinal section.

6, 1919. ySerial No. 342,987.

v through the saine, certain parts being shown in elevation; i

Fig. 3 is 'another vertical section through a portion :or the machine on line 3 3 of Fig. 2;

nig. l is a horizontal section and partly top plan view of the needle support;

Fig e illustraties the needle in top plan view in two positions; Y

Big.: 6 is partly detailsection and partly elevation through the yielding supportfor a feed roller, andV i f Figs: l, 8, `9, and 10 are diagrammatic illupstrations ofthe inovably supported head oi the threading needle in different positions. i 1 V vThe machine comprises la substantially rectangular supper l, in the forni of a casing, which is closed at its sides, end walls, and top, but which niay be open at its bot- ,L r`7"l toni. ine interior of the casing may serve to ieceive a di iving eleni'eiit, as, lor instance, an electric inotor 2, which is suitably supported by straps 3 in this casing. The arinature shait of the n'iotor carries in the illustrated embodiment, at the end proyec-ting rioni the causing, a 'worni e.- in iiiesh with a worni gear a mounted on a vertical shaft 6, which receives its beaii'ins'in a boss 7 on thetop wall of Ithe casing 1. The countersnait which extends beyond the topsurlace of the casing, suppe ts fined relation thereto a bevel gear 8 in inesh with a bevel gear 9 at the end of a spindle 10, which is disposed horizontally above the top of the casing 1.

This spindle is supported 'in lugs 11 and 12 above the top surface of the eafrlng` near the side walls of the saine. and the spindle' whichhas at oneend the fixed bevel 9 carries at the other eiid,`projecting frein the lug 11, feed roller 13, which' is also suitably lined to the spindle. This roller has a plurality of grooves T -l on its circumference to provide a knui'led surface, facilitating the "ieeding operationV of the lace-which fil ' and pivot Vmay be introduced.

tion to, the rubber or leather rings 1T. By the cooperation oi these feeding rollers 13 and 15, and also owing to the provision or" the friction elements thereon, lace may be uniformly advanced into the machine.

F or the purpose of maintaining the companion roller 15 in operative position the shaft 20, supporting' this companion roller, is journaled in a sleeve 21, from which the arm 22 extends. The arm 22, integral with the journal sleeve 21 aflixed thereto, forms one part ot a hell crank lever which is mounted on the pivot 23, supported at one end in the lug 11, and also suitably supported at the other end on the casing. The second arm of the bell crank lever 24 terminates in a cup-shaped sleeve 25, which opens downwardly, and which is telescoped over a cylindrical casing-'26, containinga spring 27, which presses the cylinder 26 down into engagement with the top surface et the casing l, and which at the same time yieldingly forces the sleeve upward'l The upper end of the spring; 27 acts upon a nut or wash-er 28, surrounding the reduced end ot a setscrew 29, which isy threaded through the closed top portion of the sleeve 25, and which also carries a counter-nut 30 to make an adjustment ot the spring tension possible through suitable rotation of the set-screw 29 and to loclr the parts in e-djusted position. It is obvious that the upper roller 15 may readily be lifted trom engagement with the lower or companion roll-er 13 against the tension ot the spring` 27 within the housing 26; the lever arm 22, on which the roller is mounted, is or" advantage for this purpose. A guiding pin 31 is dispos-ed closely to the lower roller 13, and projects trom the lug ll outwardly into opposition with Said roller.

The space in the axial plano ot the two rollers 13 and l5, confinedv by the annular friction elements 1i', and particularly the groove 1.8, serves tor the introduction and support -ot' a threading' needle which, as shown in 1, 2, yand 5, consists of a tlat steel bar 32, tapered towards one end, and provided at the reduced end with an arrow pointed head 33. r)This head is pivotally supported by means ot a pin between the two prongs 35, in which the needle terminates. The pivotal support of this arrow head is a loose one', so that this arrow may be deflected by the strands oi lace which is advanced by the feeding rollers through the machine. rlhe broadened rear end of' the needle 32 has an eye 36, through which the end ot a ribbon to be threaded into the lace Between the two ends the needle is equipped with openings 37 and 38, which serve for the passage ot locking I pins to prevent withdrawal ot the needle. f

An upstanding flange 39 is'secured to the harassecasing in some suitable way, and is provided with brackets 40 and 4l, which carry at the outer ends` sleeves 42, to receive springcontrolled Vplnngers 43, extending through these sleeves, and provided at their projecting ends with needle points or pins 44. The

ders 47, which receive gravity-controlled' plungers 48. rlhese gravity-controlled plungers are each provided with a central bore 49, adapted to permit the entry ot the pin 44 of the pertaining spring-controlled plun- 1 ger 43 of the respective upper cylinder.

The device includes mechanism tor alternately and selectively actuating the plungers 43, the needle points ot which serve as locking and pivoting elements et the threading Vneedle 32, and these actuating means also serve tor operating simultaneously the gravity-controlled plungers 48, in which the needle is supported, to bring these supports into opposition with the needle points 44, or to permit theiry withdrawal `from engagement with the needle 32. For this purpose a lug 50 extending` trom the flange 39 upward serves as a support for a rock shaft 51,

on which a hand lever 52 is mounted. rlhis hand-lever is provided with projecting arms terminating in enlargements which overlie the heads 46 ot the plungers 43. lt is obvious, therefore, that upon rocking,` ol the hand lever 52 to one or the other side from a middle position, the ends ot the arms 53 will depress either one of the plungers 43, overcoming` thereby the action ot the springs 45, and that the plunger whichvis not de-Y pressed by the arm 53 will be raised bythe spring, thereby withdrawing the pin 44 'trom the needle 32. yl`he lever 52 has a fourth arm 54, which projects downward, and which is equip sed with a lateral pin 55, cntering a slot 56 oli another lever 57, which is pivoted at 58, near the bottom ot' the casing.

This lever has also lateral arms 59, terminat-V ing in enlargements which are below, but

.in permanent contact with, the gravity-con- 32, Vwhereby the needle point 440i the plun- Y ger 43 will he forced into' the central bore 49 of the right hand plunger.

4t the saine time the gravity-controlled )lunger i8 at the left will drop, remaining, however, in engagement with the end ol the corresponding arm 59, and the upper plunger 43 will be raised by the spring,this upward movement being limited by the end of the arm 53, with which the plunger remains in engagement. This toggle lever construction embracing the clemente 52 and 57 is held i-n either one ol| the selected end positions by means of a spring 60 which, at its upper end, is secured tol the handle 61 at the top orp the lever- 52;, whilel the lower end of the spring may be connected to a pin (not shown) inv axial alignment with the pivot pi-n 58 otlieilever 5;?. This spring 60, therefore, has a tendency toj retain the toggle construction ineither one of its end positions, and to introduce, by snap action, the toggle structure to this position. Owing to the provision of this spring, the tendency of the lever 52- to remain in a central position will be counteracted and any lack of stability in t-hel structure will thereby be overcome.

The operationof the device is about as follows:

The lace, which may be fastened to a garment, or which may be used and threaded with the ribbon independent of its attachmentto the garment, is introduced between the rollers 13 and 15 by lifting the upper roller, overcoming the action of the spring 2T in the lioiising-Q. It', then, either by hand or bythe motor the motive power for the machine is thrown in,rotation will be imparted to the feeding rollers 13 and 15, and owing to the provision of the friclional projections and indentations on the surfaces of these rollers, the lace will be uniformly and gradually advanced through the space between these rollers. Assuming that a strand of the lace, beit'ore starting the motive power, occupies the position indicated in Fig. 7 at S, it is obvious that this strand has a tendency to depress the rear end of the arrow head and to lift the point of the saine above the next strand T of the same mesh. Iic the lace is then advanced along the threading needle 32, the strand S will reach the position indicated iii Fig. S, while the strand T will enter into engagement with the lower edge of the arrow head 33, as shown in Fig. 8. ln the advance or the lace this engagement of the strand T with the rear portion of the arrow head will cause a swinging movement of thearrow head 33 to the position indicated in Fig. 9, and this thread then gradually ad-` vances on the lower surface olf the threading needle, while the thread S proceeds in engagement with the upper surface of the same. The next thread, V, of the mesh will then again engage the upper edge of the arrow head, as shown in Fig. 10, and in its advance will force the rear portion of the upper arrow head down into that position which is illustrated in Fig. 7. From this it is obvious that in the advance movement .ol the lace on the threading needle alternate strands, or approximately alternate strands of the lace, will be located on the topv and the ybottoni surface respectively of the threading needle, so that the needle at that.

advance of the lace, that endl of the iabric which has iifrstbeen placed into the machine will strike against the pin lli, and the adl vance'movement oi' the lace will thereby be stopped. The resultot this operation is that a relatively large length ot lace may` be gathered on a relatively short length of the needle 32.

lli/hen the operator notices that asuliicient l length of lace has Vbeen gathered' or ruiiled on the threading needle, she swings the hand' lever 52 into the opposite position, and this swinging movement is facilitated bythe snap action due to the provision of the spring 60. rlhis movement releases the lett hand plunger 43 tothe action of the spring l5, which will torce the plunger upwardly into the position shown in Fig. 2, and at the same time theiother needle point la is forced. bythe arm 58 through the opening 37 .in the needle which overlies the central bore 49 ol` the right hand plunger 48. The spring 60 will also have tendency to firmly but yieldingly retain the parts in this position. It, then, the motive power should continue to operate, the lace will be gathered on the threading needle 324m trent of the right hand plunger All., and in the space between the needle tll and the point at which the rollers 13 and l5 approach each other. It lis obviously alsopossible to shut oil the niotive power as soon as theright hand plunger 4.3 has beenlowered. rllhe operator may then pull the gathered length of lace rearwardly of theneedle, andy she mayr for this purpose turn the needle from straight posi- A tion into the position indicated in dotted lines in Fig. 5, to facilitate this removal of the lace. In this removal of the lace from the rearward end ot the threading needle, the rearward end also supporting the ribbon, which passes preferably from the lower face of the needle through the eye 36 to the upper face of the same. The ribbon is automatically threaded into the lace for that length for which this lace is pulled off the threading needle. The operator then swings the eedle again into the interspace between the rollers and throws the lever 52 to left hand position, to lock the needle against longitudinal displacement by the rear pin 44:. The operation is then again repeated, until the entire piece of lace is uniformly provide-d with a ribbon threaded through its meshes.

l claim:

l. ln a machine of the character described, the combination of a ribbon support, and meansy tor selectively holding said support pivotally on either one of two supporting portions, with which said support is provided.

2. ln a machine et the character described, the combination ot a ribbon support, and a plurality or' co-operating means acting from opposite sides upon said ribbon support for selectively holding the saine pivotally at each one of a plurality of points.

3. ln a machine of the character described, the combination of a threading needle supporting a ribbon, lace feeding means, the threading needle being provided with a plurality ot openings, and means entering said openings for pivotally supporting the needle.

4. In a machine of the character described, a threading needle, means projecting through the needle for determining the point to which lace may be advanced on the threading needle, and lace feeding means, the first named means being` adapted to act as pivotal support for the threading needle.

5. lna machine of the character described, the combination of a threading needle, cooperating 'feeding rollers for the lace, means for threading the lace on the needle, and means for pivotally supporting `the needle, said threading means projecting` through the interspace between the feeding rollers.

G. ln a machine of the character described, the combination et a threading needle, provided with spaced openings, means for threading lace on the needle, pointed plungers disposed above the openings of' the needle, supports for the needle below said openings, and means for selectively actuating the plungers tocnter said openings Jfor pivotallyi supporting the needle.

7. ln a machine or" the character described, 'the combination of a threading needle, provided with spaced openings, pointed plungers in opposition to said openings on one side thereof, companion plungers on the opposite side oi said needle and in alignment invase@ pivotal supports for said needle, means for normally maintaining said plungers in inoperative position, and means for selectively bringing said plungers 'to operative position.

9. ln a machine of the character described, the combination of a threading needle provided with spaced openings, a pair of pointed plungers adapted to said openings, means ornormally maintaining said plungers in inoperative position, and'selectively operable means for bringing any one of said plungers to operative position, and for permitting said first named means to act upon said plungers to move them, and retain them in inoperative position.

10. ln a machine ot the character described, the combination of a threading needle provided with spaced openings, a pair of spring controlled plungers abovesaicl needle, a pair et gravity iniuenced pluneers below said needle, and selectively operable means for moving oppositely located plungers simultaneously in opposite directions with respect to the needle.

ll. ln a machine of the character described, the combination of a threadingneedle provided with spaced openings, apair of plunloers above said needle and centrally disposed with respect to said openings,rand actuating means for said plungers, said actuating means including a toggle lever structure connected with the upper and lower plungers whereby, upon actuation or' said structure, one set of plungers, including a plunger on each side of the threading needle, is moved to operative position, while simultaneously another set ot plungers including also a plunger on each side et the threading needle is moved away from the threading needle.

In testimony whereof l aiiiX my signature in the presence of two witnesses.

HAN LUNDQUST. Witnesses ALVIN A.. Sorrwnnzencii, L. Grin Renn. 

